Disk-harrow cleaner.



W. J. JOHNSON.

DISK HARROW CLEANER.

APPLICATION FILED NOV. I8. 1916.

1,230,71 6. Patented June' 19, 1917.

INVENTOR WITNESSES {8 17 z W 'llllm BY jfil/ ATTORNEY WALTER J. .ronnson, or OWENSVILLE, rnnrana.

P K-HeIi Q mm- Speeification of Letters Eatent. Patented June 19 191% Application fiiea November is, 1916. Serial No. 132,137.

' ment' for a disk-barrow provided with means for engaging the disks for scraping and cleaning the same While the harrow is in operation."

The invention further aims to provide a cleaner having means whereby the cleaning or scraping elements may be manually moved into or out of engagement with the disks, the said means being operable from the drivers seat A further object of the invention is to provide a plurality of scraping elements for en gaging the disks, certain of the said elements being designed to prevent clogging and choking of the space between adjacent disks whereby the usual obstacle of choked or clogged disks, encountered when the harrow is operating in muddy or soft earth, is obviated. 7 Another object of the invention is to provide an attachment having scraper elements, portions of which embrace thedisk shaft for permitting a bearing of'the scraper elements on theshaft whereby the said elements may be provided with a support in addition to that furnished by the supporting structure of theattachment.

A further object of this invention is the provision of a disk-harrow cleaner which consists of comparat vely few parts and 1S simplefln' constructiom'but durable and well "adapted to withstandfthe rough usage to which devices of this character are ordinarilv subjected.

"For a run description of the invention and the advantages and merits thereof, reference is to "be had to the following description and the accompanying drawings. wherein is illustrated the preferred form of my invention, in which;

permit Figure 1 is an upper elevation of one section of a 'disk-harrow showing the invention applied thereto. 5

2is a top plan view.

Fig. 3 is a detail elevation showing a fragmentary' portion of the operating levers.

Fig. 4 is a vertical section on the line al4 ofFigzl.

' Referring to the drawing, wherein is illustrated the preferred form of my in'vention, and in WllIChllke numerals of reference indicatc corresponding'parts throughout the several views, the portion of the frameof the harrow which supports and carries one section of'the disk cleaneris designated by the character A; and includes "the .front frame bar 1 the upperframe bar 2 and the two end or connecting frame bars 3.1 nepending fromthe rear frame bar 2, adjacent ,each end thereof is a-hanger 4 provided at its lower terminal with aibearing 5. The bearings 5 receive the disk shaft 6 which carries a plurality of disks 7 in the usual manner. The disks are of the usual construction, being dished to provide the shallow formation generally employed'in harrow disks ofthis character. a

Depending from the rear frame bar 2 is a pluralityv ofsupporting standards 8 the lower ends of which carrythe yokes 9 in the form of U-bolts forreceiving the reciprocating bar 10. Theyokes 9 embrace the reciprocating bar 10 for 'permittingthe same to be moved longitudinally of the frame for *the purpose hereinafter described:

The scraper blades 11 are of arcuate formation, the arch of each'blade conforming to the curve of each disk? whereby the'blade vll'will engage the greater portion .of the surface of the disk when the said bladeis moved into engagement therewith. Flanges '12 are integrally' formed with the upper ends of the blades and are provided with slots through which fastening bolts are pro jected, the latter being connected to the reciprocating bar 10. The slots in the flanges the scraper blades to be minutely adjusted whereby all: of the blades may be set for causing them to simultaneously engage the corresponding disks.

Mounted upon the front frame bar 1 is a toothed segment 13 provided with a pivot bolt upon which is mounted the operating lever 1a, the lever carrying the usual locking dog for engagement with the toothed portion of the segment 13. The operating lever depends below theframe bar 1 and is pivotally connected by a bolt 15 to an ear 16 carried by a plate 17. A plate 17 receives the ends of the connecting arms 18, the forward ends of which are fastened to the reciprocating bar 10. It will be obvious that when the operating lever is swung upon its pivot, the movement imparted to the connecting arms 18 will cause the reciprocating bar 10 to move either. one way or the other according to the movement imparted to the lever. In this manner the scraper blades 11 may be moved into engagement with the concaved surfaces of the disks 7 thereby scraping them and freeing them of mud or earth that may have adhered to the disks during the harrowing process. The length of the scraping blades permits the same to extend into the space-between the disks below the shaft 6 and, it will be observed, by referring to Fig. 1, that the scrapers occupying the space not occupied by the hangers 1, are bifurcated to embrace the shaft 6 thus providing a support in addition to that provided by the hangers 8. This construction also permits the ends of the scrapers to be projected below the shaft for preventing the said space between the disks from becoming clogged or choked withmud when the harrow is operating in soft or muddy earth.

From the foregoing it will be observed that a very simple and durable disk-harrow cleaner has been provided, the details of which embody the preferred form. I desire it to be understood however, that slight changes in the minor details of construction may be made without departing from the spirit of the invention or the scope of the claims hereunto appended.

I claim:

1. In combination with a harrow having a plurality of disks mounted upon a shaft,

a reciprocatory bar carried by the harrow,

scraper elements suspended from the said bar and having their ends bifurcated and straddling the said shaft.

2. In combination with a harrow having a plurality of disks mounted upon a shaft, a reciprocatory bar carried by the harrow, scraper elements suspended from the said bar and having their ends bifurcated and straddling the said shaft, the said scraper elements being shaped to conform to the configuration of the said disks.

" and out of engagement with the said disks, the said bifurcated portion of the scraper elements sliding on the said shaft when the said means is operated.

4:. In combination with a harrow having a plurality of disks mounted upon a shaft, a reciprocatory bar carried by the harrow,

scraper elements suspended from the said bar and, having their ends bifurcated to straddle the said shaft, the said scraper elements being shaped to conform to the configuration of the said disks, means asso ciated with the said reciprocatory bar for moving the said scraper elements into and out of engagement with the said disks, the bifurcated portion of each scraper element embracing the said shaft and depending considerably below the same whereby the said bifurcated portion may move longitudinally on the shaft when the said means is ac- 'tuated.

5. In combination with a harrow having a plurality of disks mounted upon a shaft,

nected to the said bar for imparting a reciprocatory movement thereto, a plurality of arcuate scraper elements carried by the bar and adapted to be moved into engage-' ment with the said dished side of the said disks, the said scrapers including means for preventing clogging of the space between the said disks.

6. In combinationwith a harrow having a plurality of disks carried by a shaft, the

said harrow also having hangers provided with bearings for receiving the said shaft at certain points in the spaces between cer tain of the said disks, scraper elements disposed in the spaces between the disks, means for moving the scraper elements. in the at certain points in the spaces between ce r-e formation to conform to the configuration 10 tain of the said disks, scraper elements disof the said disks.

posed in the spaces between the disks means In testimony whereof I affix my signature for moving the sclraper elements in the in presence of two witnesses.

s aces between the c isks, the scrapers in the sgaces unoccupied by the said bearings be- WALTER JOHNSON ing bifurcated and projecting below the said Witnesses:

shaft, the said scraper elements including HAROLD L. WILLIAMS,

the bifurcated portions being of arcuate HENRY THOMPSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

